Senior System Administrator

Job Description

Essential Duties and Responsibilities:

• Design, implement, and maintain Nomad’s global network and server infrastructure, including data centres, VMware, and Azure cloud environments.
• Automate infrastructure provisioning, configuration, and management using tools such as Ansible or Puppet.
• Configure and manage network security, including FortiGate firewalls, Linux based firewalls, VPNs, and routing protocols like BGP.
• Administer and secure Linux-based systems (Ubuntu/Debian).
• Serve as a 3rd line escalation point for complex infrastructure incidents, performing deep-dive troubleshooting and root cause analysis.
• Develop, maintain, and proactively analyse infrastructure monitoring solutions (e.g., Zabbix) to identify bottlenecks, optimise resource utilisation, and ensure system reliability.
• Manage and support containerised applications using Kubernetes, including cluster administration and lifecycle management.
• Create and maintain comprehensive documentation for infrastructure architecture, standard operating procedures, and disaster recovery plans.
• Collaborate with InfoSec teams to conduct security audits and implement remediation plans based on security best practices (e.g., OWASP Top 10).
• Drive continuous improvement by evaluating, prototyping, and recommending new technologies and automation opportunities to modernise the infrastructure.
• Guide and mentor engineers on technical best practices, contributing to their skill development and the overall capability of the team.
• Translate business requirements into robust technical solutions, effectively communicating the design, risks, and impact to both technical and non-technical stakeholders.

Qualifications: 

Essential

• RHCE or equivalent experience
• CCNA or equivalent networking experience
• Kubernetes Certified Administrator or equivalent experience

Are you interested in this position?

Apply by clicking on the “Apply Now” button below!

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